White House National Security Communications Advisor John Kirby noted that due to the lack of ammunition, Ukrainians in the Donetsk region are forced to retreat to the second and third lines of defense. “They [Ukrainians – ed.] are running out of ammunition in the Donbas, and they’re falling back now, second and third lines of defense. The Russians continue to try to push west. They’ve got to have the support and we need it now,” – said the advisor. At the same time, commenting on the consideration of the bill on assistance to Ukraine in the US Congress, Kirby emphasized that time is of the es…